Fake SAS addresses for SATA disks on HiSilicon D05 are non-unique
Bug #1776750 reported by
dann frazier
This bug affects 1 person
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Fix Released
|
Undecided
|
dann frazier | ||
Bionic |
Fix Released
|
Undecided
|
dann frazier |
Bug Description
[Impact]
One example of where this causes a problem is the /dev/disk/by-path symlink. Multiple SATA disks on the same controller may have the same symlink, making it useless as a unique identifier.
[Test Case]
On a D05 system w/ SATA disks attached to the onboard SAS controller:
$ cat /sys/class/
And look for non-unique addresses.
[Fix]
Addressed upstream by incorporating the scsi host's ID into the generated fake SAS address.
[Regression Risk]
Limited to the hisi_sas driver's v2 backend. The only Ubuntu system this driver supports is the HiSilicon D05, where we can directly test.
Changed in linux (Ubuntu Bionic): | |
status: | New → In Progress |
assignee: | nobody → dann frazier (dannf) |
Changed in linux (Ubuntu Bionic): | |
status: | In Progress → Fix Committed |
Changed in linux (Ubuntu): | |
status: | In Progress → Fix Released |
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This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification- needed- bionic' to 'verification- done-bionic' . If the problem still exists, change the tag 'verification- needed- bionic' to 'verification- failed- bionic' .
If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.
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